4,4'-Methylenedianiline (MDA) from China

4,4'-Methylenedianiline is a reactive aromatic diamine used in the production of high-performance polymers and as a curing agent. Classified under HTS 2921.59.80.90 as 'other' aromatic polyamines and derivatives. Its structure contains two aromatic amine groups connected by methylene bridge.

Duty Rate — China → United States

31.5%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

MDA requires specific OSHA workplace exposure permits and handling certifications

Declare exact purity (typically >97%) to maintain Chapter 29 compound classification

Include CAS number (101-77-9) on all documentation for customs verification

4,4'-Methylenedianiline (MDA) from China — Import Duty Rate | HTS 2921.59.80.90